多级H桥并联变换器的研究与实现  

Research and Realization of Multi-level H-bridge Converter

作　　者：牟富强[1] 刘志刚[1] 周鑫[1] 

机构地区：[1]北京交通大学

出　　处：《电气传动》2004年第5期18-20,共3页Electric Drive

摘　　要：介绍了一种多级 H桥并联变换器 ,通过一定的控制方式使每个 H桥变压器副边产生的波形叠加成18阶梯波 ,经滤波后可得到比较标准的正弦波。分析了系统的电路原理、幅值控制、相角控制及功率因数控制的实现方式。利用 PSPICE对系统进行了仿真 ,给出了仿真波形和分析 ;利用 DSP( TMS3 2 0 F2 40 )和 PIC为控制芯片完成了系统设计并进行了功率实验 。The paper introduces a multi-level H-bridge converter, which produces 18-step waveform according to required control method. The standard sine waveform can be gotten after passing through the filter. It analyzes the circuit principle of the system, amplitude control method, phase control method and realization of the power factor control. In addition, the system realization is offered in the paper, and DSP(TMS320F240) and PIC are used as the control chips. Finally, the simulation waveforms made by PSPICE and experimental waveforms are supplied in order to explain the work principle of the system.

关 键 词：变换器 阶梯波 变压器 功率因数 并联 TMS320F240 波形 多级 PSPICE 电路原理 

分 类 号：TM464[电气工程—电器] TN624[电子电信—电路与系统]